CVE-2022-22304Network attack vector

Unauthenticated XSS via crafted GET requests

Published Jul 18, 2022 · Updated Oct 22, 2024

Cross-site scripting in Fortinet FortiAuthenticator Agent for Outlook Web Access 2.1 and 2.2 allows remote attackers to execute script. Crafted HTTP GET input is inserted into generated web content without proper neutralization; Fortinet has not disclosed the affected handler or parameter. Exploitation requires no account, but a victim must interact with attacker-controlled content, limiting direct impact to browser-session data and actions.

CVSS severity6.1
Medium
EPSS probability0.56%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in Fortinet FortiAuthenticator Agent for Outlook Web Access 2.1 and 2.2 allows remote attackers to execute script. Crafted HTTP GET input is inserted into generated web content without proper neutralization; Fortinet has not disclosed the affected handler or parameter. Exploitation requires no account, but a victim must interact with attacker-controlled content, limiting direct impact to browser-session data and actions.

The record

CVE
CVE-2022-22304
Published
Jul 18, 2022
Updated
Oct 22, 2024
Vendor
Fortinet
Product
FortiAuthenticator Agent for Outlook Web Access
Classifications
CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 18, 2022CVE publishedPublication date reported by the CVE source.
  2. Oct 22, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=FortiAuthenticator Agent for Microsoft OWA version 2.2 and 2.1.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Fortinet · FortiAuthenticator Agent for Outlook Web Accessversion=FortiAuthenticator Agent for Microsoft OWA version 2.2 and 2.1.

Published CVSS scores

6.1Fortinet, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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